Issue #xxxx

1. Scope

Change all occurences of "elliptical" to "elliptic" as follows:

This document specifies how to extend the ISO 32000-2 specification by adding support for the following:

• use of the NIST P-curve family of elliptical curves for digital signatures;
• use of the Brainpool family of elliptical curves for digital signatures;
• >use of Edwards Curve (EdDSA) Ed448 and Ed25519 families of elliptical curves for digital signatures.

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